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-rw-r--r--src/reply-password.c108
1 files changed, 108 insertions, 0 deletions
diff --git a/src/reply-password.c b/src/reply-password.c
new file mode 100644
index 0000000000..236fdcc94c
--- /dev/null
+++ b/src/reply-password.c
@@ -0,0 +1,108 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <sys/socket.h>
+#include <sys/poll.h>
+#include <sys/types.h>
+#include <assert.h>
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/un.h>
+#include <sys/stat.h>
+#include <sys/signalfd.h>
+#include <getopt.h>
+
+#include "log.h"
+#include "macro.h"
+#include "util.h"
+
+static int send_on_socket(int fd, const char *socket_name, const void *packet, size_t size) {
+ union {
+ struct sockaddr sa;
+ struct sockaddr_un un;
+ } sa;
+
+ assert(fd >= 0);
+ assert(socket_name);
+ assert(packet);
+
+ zero(sa);
+ sa.un.sun_family = AF_UNIX;
+ strncpy(sa.un.sun_path+1, socket_name, sizeof(sa.un.sun_path)-1);
+
+ if (sendto(fd, packet, size, MSG_NOSIGNAL, &sa.sa, sizeof(sa_family_t) + 1 + strlen(socket_name)) < 0) {
+ log_error("Failed to send: %m");
+ return -1;
+ }
+
+ return 0;
+}
+
+int main(int argc, char *argv[]) {
+ int fd = -1, r = EXIT_FAILURE;
+ char packet[LINE_MAX];
+ size_t length;
+
+ log_set_target(LOG_TARGET_SYSLOG_OR_KMSG);
+ log_parse_environment();
+ log_open();
+
+ if (argc != 3) {
+ log_error("Wrong number of arguments.");
+ goto finish;
+ }
+
+ if (streq(argv[1], "1")) {
+
+ packet[0] = '+';
+ if (!fgets(packet+1, sizeof(packet)-1, stdin)) {
+ log_error("Failed to read password: %m");
+ goto finish;
+ }
+
+ truncate_nl(packet+1);
+ length = strlen(packet+1) + 1;
+ } else if (streq(argv[1], "0")) {
+ packet[0] = '-';
+ length = 1;
+ } else {
+ log_error("Invalid first argument %s", argv[1]);
+ goto finish;
+ }
+
+ if ((fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0)) < 0) {
+ log_error("socket() failed: %m");
+ goto finish;
+ }
+
+ if (send_on_socket(fd, argv[2], packet, length) < 0)
+ goto finish;
+
+ r = EXIT_SUCCESS;
+
+finish:
+ if (fd >= 0)
+ close_nointr_nofail(fd);
+
+ return r;
+}